dt-bindings: arm: google: add gs101-raven

dt-bindings: arm: google: add gs101-raven

Raven is Google's code name for Pixel 6 Pro. Since there are
differences compared to Pixel 6 (Oriole), we need to add a separate
compatible for it.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250117-gs101-simplefb-v4-1-a5b90ca2f917@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>